— Two crowns — Same mass, different density — Vertical slider ✓ Slider works — Slider controls crowns — Slider direction correct — Full slider range — Fall animation ✓ Water displacement — Rising water level — Splash effects ✓ Physics correct ✓ Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water — Gilded displaces more — Heureka animation ✓ No external deps — Light bg / dark text ✓ Self-contained HTML
A physically sound, well-designed generic Archimedes simulator, but it implements none of the crown-specific requirements: no two crowns, no fall/splash animation, no vertical immersion slider mapping top=air/bottom=water, no Heureka moment, and a dark background instead of a light one.
A physically sound, well-designed generic Archimedes simulator, but it implements none of the crown-specific requirements: no two crowns, no fall/splash animation, no vertical immersion slider mapping top=air/bottom=water, no Heureka moment, and a dark background instead of a light one.